v3.26.3
Document And Entity Information - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2026
Sep. 25, 2026
Dec. 31, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Amendment Flag false    
Document Period End Date Jun. 30, 2026    
Document Fiscal Year Focus 2026    
Current Fiscal Year End Date --06-30    
Document Fiscal Period Focus FY    
Entity Central Index Key 0002013807    
Entity File Number 001-42285    
Entity Registrant Name FOXX DEVELOPMENT HOLDINGS INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 99-5119494    
Entity Address, Address Line One 15375 Barranca Parkway C106    
Entity Address, City or Town Irvine    
Entity Address, Country CA    
Entity Address, Postal Zip Code 92618    
City Area Code 201    
Local Phone Number 962-5550    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Public Float     $ 12,590
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   7,074,907  
Documents Incorporated by Reference [Text Block] None    
Common Stock, par value $0.0001 per share      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol FOXX    
Security Exchange Name NASDAQ    
Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50 per share      
Document Information [Line Items]      
Title of 12(b) Security Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50 per share    
Trading Symbol FOXXW    
Security Exchange Name NASDAQ